Optimization of the High Order Correctors for HL-LHC Toward the Series Production

INFN is developing at the LASA lab (Milano, Italy) the High Order (HO) corrector magnets for the High Luminosity-LHC (HL-LHC) project, which will equip the interaction regions. Five prototypes, from skew quadrupole to dodecapole, have been designed and tested at LASA. All the HO correctors are based...

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Published in:IEEE transactions on applied superconductivity Vol. 31; no. 5; pp. 1 - 5
Main Authors: Statera, Marco, Alessandria, Franco, Bellomo, Giovanni, Broggi, Francesco, Imeri, Luca, Leone, Augusto, Mariotto, Samuele, Paccalini, Antonio, Pasini, Alessandro, Pedrini, Danilo, Prioli, Marco, Sorbi, Massimo, Todero, Maurizio, Uva, Carlo, Valente, Riccardo, Musso, Andrea, Todesco, Ezio, Campaniello, Marco, Canetti, Marco, Gangini, Fabrizio, Manini, Paolo, Santini, Carlo, Zanichelli, Alessandro
Format: Journal Article
Language:English
Published: New York IEEE 01.08.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Accelerator Magnets
Acceptance tests
Coils
corrector magnets
Design optimization
Hi-Lumi LHC
Luminosity
magnet training
Magnetic field measurement
Magnetic flux
Magnetic separation
Magnetomechanical effects
Magnets
Modular construction
Modularity
multipole
Production
Prototyping
Quadrupoles
Quality control
Standardization
superconducting coils
superconducting magnet
Superconducting magnets
superferric magnet
test facility
Test procedures
ISSN:1051-8223, 1558-2515
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Abstract INFN is developing at the LASA lab (Milano, Italy) the High Order (HO) corrector magnets for the High Luminosity-LHC (HL-LHC) project, which will equip the interaction regions. Five prototypes, from skew quadrupole to dodecapole, have been designed and tested at LASA. All the HO correctors are based on a superferric design, which allows a relatively simple, modular, and easy to construct magnet. This modularity has been exploited for an engineering change request. The tradeoff between safe handling, force management during cooldown, powering and protection of the magnet is explained in detail. The design of the coils and the mechanical assembly have been improved to increase the efficiency of the series production. Most of the optimizations are aimed to guarantee both a good integration in the LHC framework (i.e., radiation hardness, easiness of installation, safe operation over years), and compatibility with the series production (i.e., standardization of procedures and components for different magnets, reduction of the number of components, standardization of the quality control systems and acceptance tests). All of the produced magnets will be tested at LASA and then delivered to CERN. The design of the test-bed and the optimization of cryogenic and testing procedures is also described in this paper. Following the completion of the prototyping phase, we report in detail the solutions chosen for the HO correctors and we give a perspective of the series construction in industry and acceptance tests at LASA.
AbstractList INFN is developing at the LASA lab (Milano, Italy) the High Order (HO) corrector magnets for the High Luminosity-LHC (HL-LHC) project, which will equip the interaction regions. Five prototypes, from skew quadrupole to dodecapole, have been designed and tested at LASA. All the HO correctors are based on a superferric design, which allows a relatively simple, modular, and easy to construct magnet. This modularity has been exploited for an engineering change request. The tradeoff between safe handling, force management during cooldown, powering and protection of the magnet is explained in detail. The design of the coils and the mechanical assembly have been improved to increase the efficiency of the series production. Most of the optimizations are aimed to guarantee both a good integration in the LHC framework (i.e., radiation hardness, easiness of installation, safe operation over years), and compatibility with the series production (i.e., standardization of procedures and components for different magnets, reduction of the number of components, standardization of the quality control systems and acceptance tests). All of the produced magnets will be tested at LASA and then delivered to CERN. The design of the test-bed and the optimization of cryogenic and testing procedures is also described in this paper. Following the completion of the prototyping phase, we report in detail the solutions chosen for the HO correctors and we give a perspective of the series construction in industry and acceptance tests at LASA.
Author Paccalini, Antonio
Pasini, Alessandro
Todesco, Ezio
Manini, Paolo
Santini, Carlo
Statera, Marco
Broggi, Francesco
Bellomo, Giovanni
Pedrini, Danilo
Todero, Maurizio
Uva, Carlo
Alessandria, Franco
Musso, Andrea
Zanichelli, Alessandro
Gangini, Fabrizio
Prioli, Marco
Mariotto, Samuele
Campaniello, Marco
Valente, Riccardo
Leone, Augusto
Sorbi, Massimo
Imeri, Luca
Canetti, Marco
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SubjectTerms Accelerator Magnets
Acceptance tests
Coils
corrector magnets
Design optimization
Hi-Lumi LHC
Luminosity
magnet training
Magnetic field measurement
Magnetic flux
Magnetic separation
Magnetomechanical effects
Magnets
Modular construction
Modularity
multipole
Production
Prototyping
Quadrupoles
Quality control
Standardization
superconducting coils
superconducting magnet
Superconducting magnets
superferric magnet
test facility
Test procedures
Title Optimization of the High Order Correctors for HL-LHC Toward the Series Production
URI https://ieeexplore.ieee.org/document/9395196
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Volume 31
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